<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<form action="/app/pay" method="post">
  订单号：<input type="text" name="outTradeNo" required><br/>
  订单名称：<input type="text" name="subject" required><br/>
  付款金额：<input type="text" name="totalAmount" required><br/>
  <input type="submit" value="下单"> <input type="reset" value="重置">
</form>
</body>
</html>
